TCI, a leader in performance transmissions, has a new PRO-X TH400 Transmission that can withstand the punishment of today’s high horsepower drag racing engines.
Official Release:
TCI PRO-X GM TH400 Transmission
New PRO-X TH400 from TCI® provides the improved gear splits of a 3-speed design, 3000+ hp durability and a host of drag racing-specific features
The competitive world of drag racing is constantly changing. While the GM Powerglide remains a popular transmission choice due to its proven durability, its 2-speed configuration sometimes leaves something to be desired due to the rpm drop between gears. Recognizing this dilemma, the engineers at TCI designed a TH400 transmission that is capable of handling the same elevated horsepower levels as the Powerglide but with the advantages of a 3-speed configuration. Beyond the built-in gearing advantages, TCI also incorporated a “clean neutral” feature after high gear and a Pro Tree Trans-Brake that enables quicker and more consistent launches.
The new PRO-X TH400 utilizes premium component upgrades that reduce reciprocating weight while also providing bullet-proof durability that was once thought impossible in a TH400. Upgrade components include five friction clutches and five Kolene steels in the intermediate pack, a 7075-T6 billet aluminum rotating assembly, as well as a main shaft and input shaft made from a hybrid aerospace metal alloy. The GM TH400 pump comes with polymer dry film coated gears and a staked stator support shaft. These upgraded components reduce reciprocating weight by up to 16 lbs., and additional CNC-machining to the GM TH400 case allows the use of spiral locks to support components around the center area for increased strength and concentricity.
Another impressive feature of the PRO-X TH400 is the “Clean Neutral” Pro Tree Quick Release Valve Body, which provides the quickest reaction times available and promotes safety by enabling a shift into a second neutral after crossing the finish line. This unique transmission is truly the best 3-speed unit available for the 1500-3000+ hp applications, from Hot Street to Outlaw 10.5 classes.
- Clean Neutral Pro Tree Quick Release Valve Body provides the quickest reaction times available.
- 1500-3000+ horsepower durability
- Bullet-proof durability that was once thought impossible in a TH400
You might also like
Historic 68th March Meet Returns to Famoso This March
The 68th March Meet returns to Famoso Dragstrip with Nitro racing and nostalgia cars. The historic event runs March 5-8.
